Messages in this thread |  | | From | "Jonathan Earle" <> | Subject | RE: Kernel oops in mm/slab.c [ kmem_cache_grow() ] with test4-8 | Date | Mon, 18 Sep 2000 13:28:51 -0500 |
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<P><FONT SIZE=2>> -----Original Message-----</FONT> <BR><FONT SIZE=2>> From: Andrew Morton [<A HREF="mailto:andrewm@uow.edu.au">mailto:andrewm@uow.edu.au</A>]</FONT> <BR><FONT SIZE=2>> Sent: Friday, September 15, 2000 11:47 PM</FONT> <BR><FONT SIZE=2>> To: Earle, Jonathan [KAN:1A31:EXCH]</FONT> <BR><FONT SIZE=2>> Cc: Linux MPLS List (E-mail); Linux Kernel List (E-mail)</FONT> <BR><FONT SIZE=2>> Subject: Re: Kernel oops in mm/slab.c [ kmem_cache_grow() ] </FONT> <BR><FONT SIZE=2>> with test4-8</FONT> <BR><FONT SIZE=2>> </FONT> <BR><FONT SIZE=2>> </FONT> <BR><FONT SIZE=2>> > Jonathan Earle wrote:</FONT> <BR><FONT SIZE=2>> > </FONT> <BR><FONT SIZE=2>> > Hi,</FONT> <BR><FONT SIZE=2>> > </FONT> <BR><FONT SIZE=2>> > I've been having kernel oopses with the 2.4.0-test series and am</FONT> <BR><FONT SIZE=2>> > including ksymoops processed output from both test4 and test5</FONT> <BR><FONT SIZE=2>> > kernels. The same oops happens in later kernels too (Tested with</FONT> <BR><FONT SIZE=2>> > test6, test7 and test8).</FONT> <BR><FONT SIZE=2>> > </FONT> <BR><FONT SIZE=2>> </FONT> <BR><FONT SIZE=2>> Presumably mpls_output() is doing a kmalloc(..., GFP_KERNEL) </FONT> <BR><FONT SIZE=2>> from within</FONT> <BR><FONT SIZE=2>> a softirq. Hunt that down and turn it into GFP_ATOMIC.</FONT> </P>
<P><FONT SIZE=2>Okay... Did that (turned all the GFP_KERNEL refereces in net/mpls to GFP_ATOMIC, and the problem seems to have gone away, I'll post a more confident summary when I'm more sure that things are working properly.</FONT></P>
<P><FONT SIZE=2>Now, what did I do (aside from fixing the problem) by changing that reference?</FONT> </P>
<P><FONT SIZE=2>Many thanks for the hint!! </FONT> </P>
<P><FONT SIZE=2>Jon</FONT> </P>
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